From the PlanetXbox360.com feature article:
"The full roster for Capcom’s epic fighting game Marvel vs. Capcom 3: Fate of Two Worlds has been revealed, and you’ll be able to choose from 36 great combatants…at first, anyway. More fighters are expected to be introduced from Capcom over the course of the game’s release, via downloadable content. We already know Resident Evil’s Jill Valentine and Marvel’s Shuma-Gorath will be available, courtesy of the game’s Special Edition. (A separate download should be available as well) We’re also eager to see if any rumored characters show up, such as Phoenix Wright. As we all wait until next week for the most-anticipated fighting game of 2011 - Marvel vs. Capcom 3, let’s run through all 36 of the fighters that we know will be included in the game, and whether they’re worth your time. Stay tuned to this article for any DLC character updates should they come in from Capcom, the game hits store shelves next week and PlanetXbox360.com will have a full review around that time."